A simplified fluid model of the metallic plasma and neutral gas interaction in a multicathode spot vacuum arc

A stationary fluid model with spherical symmetry is presented to describe the interaction between metallic plasma ions with neutral gas in the outer region of a multicathode spot vacuum arc operated with a neutral background gas. It is found that the neutrals penetrate into the metallic plasma with...

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Autores principales: Kelly, Héctor Juan, Marquez, Adriana B., Minotti, Fernando Oscar
Publicado: 1998
Materias:
Fluid model
Ion-gas interaction
Vacuum arc
Cathodes
Electric arcs
Ion beams
Kinetic energy
Mathematical models
Plasma density
Vacuum technology
Multicathode spot vacuum arcs
Stationary fluid model
Beam plasma interactions
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00933813_v26_n4_p1322_Kelly
http://hdl.handle.net/20.500.12110/paper_00933813_v26_n4_p1322_Kelly
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_00933813_v26_n4_p1322_Kelly
record_format dspace
spelling paper:paper_00933813_v26_n4_p1322_Kelly2023-06-08T15:08:35Z A simplified fluid model of the metallic plasma and neutral gas interaction in a multicathode spot vacuum arc Kelly, Héctor Juan Marquez, Adriana B. Minotti, Fernando Oscar Fluid model Ion-gas interaction Vacuum arc Cathodes Electric arcs Ion beams Kinetic energy Mathematical models Plasma density Vacuum technology Multicathode spot vacuum arcs Stationary fluid model Beam plasma interactions A stationary fluid model with spherical symmetry is presented to describe the interaction between metallic plasma ions with neutral gas in the outer region of a multicathode spot vacuum arc operated with a neutral background gas. It is found that the neutrals penetrate into the metallic plasma with density values smaller than the initial gas density values, but higher than the metallic ion densities. The neutrals are also strongly heated during the transient expansion stage of the metallic plasma. As a consequence, the ion kinetic energy is gradually delivered to the neutral gas so that the mean free path for ion-neutral elastic collisions is larger than the visible plasma ball radius which surrounds the arc. © 1998 IEEE. Fil:Kelly, H. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Marquez, A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Minotti, F.O. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 1998 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00933813_v26_n4_p1322_Kelly http://hdl.handle.net/20.500.12110/paper_00933813_v26_n4_p1322_Kelly
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Fluid model
Ion-gas interaction
Vacuum arc
Cathodes
Electric arcs
Ion beams
Kinetic energy
Mathematical models
Plasma density
Vacuum technology
Multicathode spot vacuum arcs
Stationary fluid model
Beam plasma interactions
spellingShingle Fluid model
Ion-gas interaction
Vacuum arc
Cathodes
Electric arcs
Ion beams
Kinetic energy
Mathematical models
Plasma density
Vacuum technology
Multicathode spot vacuum arcs
Stationary fluid model
Beam plasma interactions
Kelly, Héctor Juan
Marquez, Adriana B.
Minotti, Fernando Oscar
A simplified fluid model of the metallic plasma and neutral gas interaction in a multicathode spot vacuum arc
topic_facet Fluid model
Ion-gas interaction
Vacuum arc
Cathodes
Electric arcs
Ion beams
Kinetic energy
Mathematical models
Plasma density
Vacuum technology
Multicathode spot vacuum arcs
Stationary fluid model
Beam plasma interactions
description A stationary fluid model with spherical symmetry is presented to describe the interaction between metallic plasma ions with neutral gas in the outer region of a multicathode spot vacuum arc operated with a neutral background gas. It is found that the neutrals penetrate into the metallic plasma with density values smaller than the initial gas density values, but higher than the metallic ion densities. The neutrals are also strongly heated during the transient expansion stage of the metallic plasma. As a consequence, the ion kinetic energy is gradually delivered to the neutral gas so that the mean free path for ion-neutral elastic collisions is larger than the visible plasma ball radius which surrounds the arc. © 1998 IEEE.
author Kelly, Héctor Juan
Marquez, Adriana B.
Minotti, Fernando Oscar
author_facet Kelly, Héctor Juan
Marquez, Adriana B.
Minotti, Fernando Oscar
author_sort Kelly, Héctor Juan
title A simplified fluid model of the metallic plasma and neutral gas interaction in a multicathode spot vacuum arc
title_short A simplified fluid model of the metallic plasma and neutral gas interaction in a multicathode spot vacuum arc
title_full A simplified fluid model of the metallic plasma and neutral gas interaction in a multicathode spot vacuum arc
title_fullStr A simplified fluid model of the metallic plasma and neutral gas interaction in a multicathode spot vacuum arc
title_full_unstemmed A simplified fluid model of the metallic plasma and neutral gas interaction in a multicathode spot vacuum arc
title_sort simplified fluid model of the metallic plasma and neutral gas interaction in a multicathode spot vacuum arc
publishDate 1998
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00933813_v26_n4_p1322_Kelly
http://hdl.handle.net/20.500.12110/paper_00933813_v26_n4_p1322_Kelly
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